<template>
  <view class="goods-detail-container" v-if="goods_info.goods_name">
    <!-- 轮播 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>

    </swiper>
    <!-- 商品信息 -->
    <view class="goods-info-box">
      <!-- 价格 -->
      <view class="price">￥{{ goods_info.goods_price | tofixed}}</view>
      <view class="goods-info-body">
        <!-- 名称 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
          <view class="yf">快递:免运费</view>
        </view>

      </view>
    </view>
    <!-- 商品详情 -->
    <view class="textbaby">
      <view class="text">宝贝详情</view>
    </view>
    <rich-text :nodes="goods_introduce"></rich-text>
    <!-- 商品导航 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import { mapState,mapMutations,mapGetters } from 'vuex'
  export default {
    data() {
      return {
        goods_info: {},
        goods_introduce: '',
        goods_id: 0,
        options: [ {
          icon: 'shop',
          text: '店铺',
          info: 0,
          infoBackgroundColor: '#007aff',
          infoColor: "red"
        }, {
          icon: 'cart',
          text: '购物车',
          info: 0
        }],
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ]

      };
    },
    onLoad(options) {
      this.goods_id = options.goods_id
      this.getGoodsDetail()
    },
    methods: {
      ...mapMutations('m_cart',['addToCart']),
      async getGoodsDetail(cb) {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/detail', {
          goods_id: this.goods_id
        })
        cb && cb()
        if (res.meta.status !== 200) return uni.$showMsg()
        this.goods_introduce = res.message.goods_introduce.replace(/<img/g, '<img style="display:block;"').replace(
          /webp/g, 'jpg')
        this.goods_info = res.message
      },
      
      preview(i) {
        uni.previewImage({
          current: i,
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      
       onClick (e) {
         	    if(e.content.text === '购物车'){
         	         uni.switchTab({
         	           url:'/pages/cart/cart'
         	         })
         	      
         	    }
          },
         	  buttonClick (e) {
               if(e.content.text === '加入购物车'){
                    const goods = {
                      goods_id:this.goods_info.goods_id,
                      goods_name:this.goods_info.goods_name,
                      goods_price:this.goods_info.goods_price,
                      goods_count:1,
                      goods_small_logo:this.goods_info.goods_small_logo,
                      goods_state:true
                    }
                    this.addToCart(goods)
               }
            },
      
    },
    computed: {
      ...mapState('m_cart',['cart']),
      ...mapGetters('m_cart',['total'])
    },
    // 监听购物车商品总量
    watch:{
      total:{
        handler(newVal){
          const findResult = this.options.find((x) => x.text === '购物车')
          
          if (findResult){
            findResult.info = newVal
          }
        },
        // 声明监听器  页面首次加载完后调用
        immediate: true
      }  
    },
    
    onPullDownRefresh() {
      this.goods_info = {}
      this.goods_introduce = ''
      this.getGoodsDetail(() => uni.stopPullDownRefresh())
    },
    filters: {
      tofixed(num) {
        return Number(num).toFixed(2);
      }
    }
    
  }
</script>

<style lang="scss">
  .goods-detail-container{
    padding-bottom: 50px;
  }
  swiper {
    height: 750rpx;
  
  image {
      width: 100%;
      height: 100%;
    }
  }

  .goods-info-box {
    padding: 10px;

    .price {
      color: #c00000;
      font-size: 18px;
      margin: 5px 15px;
    }

    .goods-info-body {
      display: flex;
      justify-content: space-around;

      .goods-name {
        font-size: 15px;
        pointer-events: 14px;
        padding: 10px;
      }

      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding-left: 10px;
        border-left: 1px solid #efefef;
        color: gray;

        .yf {
          margin: 10px 0;
          font-size: 12px;
          color: gray;
          white-space: nowrap;
        }
      }

    }

  }

  .textbaby {
    text-align: center;
    font-size: 14px;
    position: relative;
    color: gray;
    margin: 10px;

    .text {

      &:before,
      &:after {
        position: absolute;
        background-color: #ccc;
        content: "";
        height: 1px;
        top: 50%;
        width: 100px;
      }

      &:after {
        margin-left: -160px;
      }

      &:before {
        margin-left: 60px;
      }
    }


  }
  .goods_nav{
    position: fixed;
    width: 100%;
    bottom: 0px;
  }

</style>
